WARNING
To ensure safe operation, and in order to exploit to the
full functionality of the meter, please follow the
directions in this section carefully.

This multimeter has been designed according to IEC-1010
concerning electronic measuring instruments with an
overvoltage category CAT ΙΙΙ 600V and pollution 2.
With proper use and care, the digital multimeter will give you
years of satisfactory service.
Follow all safety and operating instructions to ensure that the
meter is used safely and is kept in good operating condition.
1.1 PRELIMINARY
1.1.1 When using the meter, the user must observe all normal
safety rules concerning:
• Protection against the danger of electrical attack
• Protection of the meter against misuse
1.1.2 When the meter is delivered, check if it has been
damaged in transit.
1.1.3 When harsh preservation or shipping conditions caused,
inspect and confirm this meter without delay.
1.1.4 Test leads must be in good condition. Before using

verify that the insulation on test leads is not damaged
and/or the leads’ wire is not exposed.
1.1.5 Full compliance with safety standards can be
guaranteed only if used with test leads supplied. If
necessary, they must be replaced with the same model
or the same class.
1.2 DURING USE
1.2.1 Before using, you must select the right input jack,
function and range.
1.2.2 Never exceed the protection limit values indicated in
specifications for each range of measurement.
1.2.3 When the meter is linked to a measurement circuit, do
not touch unused terminals.
1.2.4 Do not measure voltage if the voltage on the terminals
exceeds 600V above earth ground.
1.2.5 At the manual range, when the value scale to be
measured is unknown beforehand, set the range
selector at the highest position.
1.2.6 Always be careful when working with voltages above
60V DC or 30V AC rms, keep fingers behind the probe
barriers while measuring.
1.2.7 Never connect the meter with any voltage source while
the function switch is in the current, resistance,

the meter
can not be used any more and it has to be checked
out.10 Never measure any of resistance，capacitance.9 When carrying out measurements on TV or switching
power circuits always remember that there may be
high amplitude voltages pulses at test points.
.11 Never perform capacitance measurements unless the
capacitor to be measured has been discharged fully. diode
or continuity measurements on live circuits.2. otherwise it will
damage the meter.
1.
1.2. humidity or
condensation.
1.
1. continuity，temperature.2. high temperature.2.
disconnect test leads from the circuit under test.
1.13 If any faults or abnormalities are observed.8 Before stir the transform switch to change functions.15 Please do not store or use meter in areas exposed to
direct sunlight.
1.
1.
1.2. steam or dirt. humidity.12 Never use the meter under the condition of the
explosive air.14 Never use the meter unless the rear case is in place
and fastened fully. which
can damage the meter.2.2.2. diode.
sound level or illuminance range. capacitance.

Double insulation（Protection class ΙΙ）.4.
CAT III Overvoltage (Installation) category III.
1.3 SYMBOLS
Important safety information.4.2 Before opening the case of the meter. Pollution
Degree 2 per IEC1010-1 refers to the level of
Impulse Withstand Voltage protection provided. refer to the operating
manual.1 Please do not attempt to adjust or repair the meter by
removing the rear case while voltage is being applied.4 MAINTENANCE
1.
Dangerous voltage may be presence. always
.1.
Conforms to European Union Directive
Earth ground
Fuse
Low Battery
~ AC (alternating current)
DC (direct current)
Continuity Buzzer
~ AC or DC (alternating current or direct current)
1. A
technician who fully understands danger involved should
only carry out such actions.

replace fuse only
with the specified voltage and current ratings: F
500mA/250V (quick acting). you must change the
battery.4.
1.
when the meter displays“ ”. use a
damp cloth and mild detergent only.
1.
1.7 If the meter is to be stored for a long period of time.
.3 To avoid the wrong reading causing electricity attack.4.4.4 For continue protection against fire.6 ALWAYS set the power switch to the OFF position when
the meter is not in use.
1.4.
1. disconnect test leads from all sources of electric current. the
batteries should be removed to prevent damage to the
unit.5 Do not use abrasives or solvents on the meter.4.

. Temperature Meter and Digital Multimeter. The Humidity/Temperature is for use a humidity
semiconductor sensor and K type thermocouple. workshop. Capacitance
measurement and Continuity. schools.The Sound Level function can be used to measure noise in
factories. etc.The Light function is used to measure illuminance in the
field.The 5 in 1 digital multi-tester has been designed to
combine the functions of Sound Level Meter. It is an ideal multi-function Instrument with
scores of practical applications for professional.
.The digital Multimeter performs AC/DC Voltage. It is fully cosine corrected for the angular incidence of
light.When using. Duty. it can show ranges engineering unit
.
Humidity Meter. checking
acoustics of studios. Resistance ， Frequency. hobby and home use. home.This meter is a portable professional measuring instrument
with large LCD and back light easily reading.
.
. Light Meter. Single
operation of a range switch makes measurement
convenient. offices. The light sensitive component used in the meter is a
very Stable. DESCRIPTION
. long life silicon diode.
.
. Overload protection and low battery indication
are provided. airports. auditoriums and hi-fi installations. AC/DC
Current.
.
school.2. Diode test.

• REL Button
This button is used to the transformation of relative
measuring.
• LIGHT Button
This button is used to the switch of back light.
• OFF .
• Transform Switch
This switch is used to select functions and desired ranges.
• RANGE Button
This button is used to transform Auto range or manual
range.
• Hz% Button
This button is used to the transformation of Hz or Duty
measuring.
• 10A Input Jack
Input terminal for current 0 ~ 10A.
• mA/℃Input Jack
Input terminal for current 0 ~ 400mA.• FUNC Button
This button is used to transform function.switch
This switch is used to turn off the power. centigrade
.

voltage
and resistance." when measuring the Hz range.
diode and continuity.
meter will recover the Hz range.
Put "FUNC" when measuring the resistance.
4.
4. capacitance.4 HZ/DUTY TRANSFORM
• Put down the "Hz%.3 RANGE TRANSFORM
The auto range is used when measuring the current. it will hold the reading.1 DATA HOLD
If you need data hold when measuring. range will go upward.
Press the " Hz%" again to be the DUTY range and the
DUTY CYCLE of the signal for the voltage and current are
. Put down the "RANGE" if the manual range is
needed. if you put the button again. meter will transform among them. Meter will be transformed between DC and AC range. If the "RANGE" is put down more than two
seconds. Meter
will be transformed at DUTY range. you can put on
“HOLD”. Press the "Hz%" again.
put down the " Hz%" to be Hz range and the frequency of
the signal for the voltage and current are measured then.2 FUNCTION TRANSFORM
Put down the "FUNC" when measuring the current and
voltage.
• When measuring at the voltage range and current range.
data hold will not continue. Each time you put down. auto range is used again
4. OPERATING INSTRUCTION
4.4. the
minimum range is transformed if "RANGE" is put down at the
maximum range.

put down the "REL. you can press the ”LIGHT” button to open the
back light. initial display will
show ”000”. meter will recover the
normal working condition.
But if you use back light at the same time.6 BACK LIGHT
If the light is too dark to make the reading difficult when
measuring. the accuracy of the
. although the meter has the timer equipment (time is
5 seconds and it will off automatically after 5 seconds).
4. press the "REL" again. Its working current is
large. (When “ “ shows.
which can be cancelled by rotating the transform switch or
put down the "RANGE”.". This can not be used under “0L”
condition.
because the working current is higher and the voltage will
decline.5 RELATIVE TRANSFORM
When measuring. The
range of voltage and current are locked under this condition. measured then.
NOTE:
• LED is the main source of back light. meter will be back
to the condition of the voltage and current measuring. maybe “ ” will
come up even if the battery voltage is more than 7V. Press the " Hz%" again. meter will be
transformed at relative measuring.
often use back light will shorten the battery life.
• When the battery voltage is less than 7V. it will show “ ”.
4. you’d better
not to use the back light so frequently if it’s not necessary.

4 When connection.
4. first connect to the public testing line. When you use normally (back light is not using).7 AUTO POWER OFF
• If there’s no any operation within fifteen minutes after power
is on.8 PREPARATION FOR MEASUREMENT
4.8. display will show “ ”.
.
then to the electriferous testing line.
4.) You need not replace
the battery. When you’ll remove
it.
• If presses the “FUNC” when power is on.
• After auto power off. You need replace it till “ ”show
again.
4.
4. if stir the transform switch or put down
any button of “HOLD”、 “FUNC”、”RANGE”、”Hz%”、”REL”.
4. auto power off
disable.1 Turn the transform switch.
“ ” will not show up. meter will auto power off with five short sounds and a
long sound in a minute.8.2 The “ ” besides the input lead shows that the input
voltage or current should be less than specification on
the sticker of the meter to protect the inner circuit from
damaging. you should remove the elecriferous one. measurement can not be assured.8. If the battery voltage is less
than 7V.8.
meter will recover the working condition. the battery should be
changed at this time.3 Select a transform switch accordingly for the item to be
measured.

it’s possible to show higher voltage. set the range selector at the highest position.9 DC VOLTAGE MEASURING
WARNING
You can’t input the voltage which more than 600V
DC.9.
Auto range or manual range can be transformed by
putting the “RANGE”.9.9.
NOTE:
• When only the figure ‘OL’ is displayed. but it’s may
destroy the inner circuit.
4.
.3 Put down the "FUNC. The polarity of the red
lead connection will be indicated along with the voltage
value.
4.9.4 Connect test leads across the source or load under
measurement.
4.2 Set the transform switch at the V range position.1 Connect the black test lead to the COM jack and the red
test lead to the V jack." to enter the DC measurement.
Pay attention not to get an electric shock when
measuring high voltage.
4.5 You can get reading from LCD.
4.4.
• When the value scale to be measured is unknown
beforehand. it indicates
overrange situation and the higher range has to be selected.9.

.

10.10.
Auto range or manual range can be transformed by
putting the “RANGE”. set the range selector at the highest position.
." to enter the AC measurement.
4.10 AC VOLTAGE MEASURING
WARNING
You can’t input the voltage which more than 600V
rms AC.2 Set the transform switch at the V range position.5 You can get reading from LCD.
4. it’s possible to show higher voltage.1 Connect the black test lead to the COM jack and the
red test lead to the V jack.4 Connect test leads across the source or load under
measurement.
4.
• When the value scale to be measured is unknown
beforehand.
4.10.
4.10.3 Put down the "FUNC. it indicates
overrange situation and the higher range has to be selected.10.
NOTE:
• When only the figure ‘OL’ is displayed.
Pay attention not to get an electric shock when
measuring high voltage. but it’s
may destroy the inner circuit.4.

.

The polarity of red
connection will be indicated along with the voltage
value.1 Connect the black test lead to the COM jack and the
red test lead to the mA jack for a maximum of 400mA
current.
4.11.
. then
connect the meter with the circuit for measurement.11 DC CURRENT MEASURING
WARNING
Shut down the power of the tested circuit.
4.4.
At mA range.4 Connect test leads in series with the load under
measurement.
4.11. move the red lead to
the 10A jack.
4.5 You can get reading from LCD.
4.11.11.11. it indicates
overrange situation and the higher range has to be selected." to enter the DC measurement. For a maximum of 10A. auto range or manual range can be
transformed by putting the “RANGE”.
NOTE:
• When only the figure ‘OL’ is displayed.2 Set the transform switch at the desired A range
position.3 Put down the "FUNC.
• When the value scale to be measured is unknown
beforehand. set the range selector at the highest position.

.

auto range or manual range can be
transformed by putting the “RANGE”.12 AC CURRENT MEASURING
WARNING
Shut down the power of the tested circuit.
4.12.
• When the value scale to be measured is unknown beforehand.12.5 You can get reading from LCD. it indicates
overrange situation and the higher range has to be selected.•“ ” means the maximum current of mA socket is 400mA.
the maximum current of 10A socket is 10A.4 Connect test leads in series with the load under
measurement. move the red lead to
the 10A jack." to enter the AC measurement.
4. then
connect the meter with the circuit for measurement.
NOTE:
• When only the figure ‘OL’ is displayed.
.3 Put down the "FUNC. For a maximum of 10A.
4.2 Set the transform switch at the desired A range
position.12. over-current will
destroy the fuse.
4.12.
4.
At mA range.1 Connect the black test lead to the COM jack and the
red test lead to the mA jack for a maximum of 400mA
current.12.
4.

.

13.1 Connect the black test lead to the COM jack and the
red test lead to the Ω jack.
the maximum current of 10A socket is 10A.
Auto range or manual range can be transformed by
putting the “RANGE”.5 You can get reading from LCD.13.13.13.3 Put down the "FUNC. at open circuit.
4.4 Connect test leads across the resistance under
measurement.2 Set the transform switch at the Ω range
position.
4.13 RESISTANCE MEASURING
WARNING
When measuring in-circuit resistance.
4. the
. it indicates
overrange situation and the higher range has to be selected.e." to enter the Ω measurement.
NOTE:
• When only the figure ‘OL’ is displayed. over-current will
destroy the fuse.
4.
4. i.13. be sure the
circuit under test has all power removed and that all
capacitors have been discharged fully.
•“ ” means the maximum current of mA socket is 400mA.
4.
• When the input is not connected. set the range selector at the highest position.

.

put down the “REL” to make the display show “000”.1 Connect the black test lead to the COM jack and the
red test lead to the jack.14.14 CAPACITANCE MEASURING
WARNING
To avoid electric shock.14.
• When measuring low capacity range under the open circuit.4 Before connect test leads across two sides of the
capacitor under measurement. the meter may take a
few seconds to get stable reading.
4. be sure that the
capacitor has been discharged fully.
• For measuring resistance above 1MΩ.
4.14.3 put down the "FUNC. be sure the capacitors have
been discharged fully before measuring the
capacitance of a capacitor.
4.5 You can get reading from LCD.
NOTE:
• It takes certain time (200μF range 30 seconds) to steady
the reading when measuring high capacity.
4.2 Set the transform switch at the Ω range
position. figure ‘1’ will be displayed for the overrange condition.
4.14.
. then
you might get reading from it." transformed at measurement.
4.14.

.

15.
NOTE:
• The meter will show the approximate forward voltage drop
of the diode.2 Set the transform switch at the Ω range
position. the black lead to
the cathode of the diode under testing.15.15.15.5 You can get reading from LCD.15 DIODE TESTING
4.
4.4 Connect the red lead to the anode.4.
4. only figure‘0L’will be
displayed.
4.3 Put down the "FUNC.
.
4.1 Connect the black test lead to the COM jack and the
red test lead to the jack.15." transformed at test.
• If the lead connection is reversed.

.

16 CONTINUITY TESTING
WARNING
When testing the circuit continuity.e.16.
4.
4.5 If continuity exists（i.16.1 Connect the black test lead to the COM jack and the
red test lead to the Ω jack.3 put down the "FUNC. resistance less than about
40Ω）.16.
4.
4..16. be sure that the
power of the circuit has been shut down and all
capacitors have been discharged fully.
4. built-in buzzer will sound. then the figure ‘ 0L ’ will be
displayed.
.16." transformed at continuity
test.2 Set the transform switch at the Ω range
position.4.6 You can get reading from LCD.
4.4 Connect test leads across two points of the circuit
under testing.16.
NOTE:
• If the input open circuit (or the circuit resistance measured
is higher than 400Ω).

.

17.
4.3 Connect test leads across the source or load under
measurement. put down the
“Hz%” to transform to Hz measurement).4.2 Set the transform switch at the Hz range position (or at
the ACV range and the DCV range.
4.
.17.1 Connect the black test lead to the COM jack and the
red test lead to the Hz jack.17.4 You can get reading from LCD.17.
4.17 FREQUENCY MEASURING
4.

.

4.18.1 Connect the black test lead to the COM jack and the
red test lead to the Hz jack.
4.18.5 You can get reading from LCD.2 Set the transform switch at the Hz range position. put down the “Hz%” to transform to DUTY
measurement).18 DUTY CYCLE MEASURING
4.18.
.4 Connect test leads across the source or load under
measurement.3 Put down the "Hz%" to enter the DUTY measurement
(or set the transform switch at the ACV range and the
DCV range.18.
4.18.
4.
4.

.

2 The ‘LCD’ display will show the current environment
temperature. do not connect the
thermocouples with the electriferous circuit.
4. Insert the
black plug to the COM jack and the red one to the ℃
jack.4.19.1 Set the transform switch at the desired ℃ range
position.19.19.
.3 When measuring the temperature with thermocouple. touch the end of the temperature sensor to the
area or surface of the object for measurement. and then accurate reading can be gotten.
4.19 TEMPERATURE MEASURING
WARNING
To avoid electrical shock.
4. the meter’s temperature measured
circuit and environment need a little longer time to reach heat
balance.
‘K’ type probe for this meter can be used.
4.
NOTE:
• With better hermetization.19.4 You can get reading from LCD.

.

4.1 Set the transform switch at the %RH range position.20.2 The ‘LCD’ display will show the current environment
humidity.
NOTE:
• When the tested environment humidity value changed.
It need to a few minutes to get the stable "RH"
reading.
.20 HUMIDITY MEASURING
WARNING
To avoid damage to the meter.20. input plug can not
connect with any electric signal.4.
4.

4.) striking the microphone call
cause misreading for measurement in windy locations.21 SOUND LEVEL (dB) MEASURING
WARNING
To avoid damage to the meter.2 Move the sensor in front of the meter to the sound
source in a horizontal position.
.3 The ‘LCD’ display will show the current sound level
(dB). input plug can not
connect with any electric signal.21.21.
• Strong wind (over 10m/sec.
4. a
windscreen should be used in front of microphone.
4.21.
4.
NOTE:
•The Fast response is suitable to measure sudden bursts
and peak values from sound source.1 Set the transform switch at the dB range position.

22.3 The ‘LCD’ display will show the illuminance at the
meter .
4.22.4.
4.22.22 ILLUMINANCE MEASURING
WARNING
To avoid damage to the meter.
4.
.2 Move the sensor in front of the meter to light source in
a horizontal position.1 Set the transform switch at the Lux or ×10Lux range
position. input plug can not
connect with any electric signal.

.
(International Commission on Illumination) photopia
curve V (λ) as the following chart described.
•.E. characteristic almost meet C. Spectral sensitivity characteristic: To the detector.NOTE:
• When only the figure ‘OL’ is displayed. the
applied photo diode with filters makes the spectral
sensitivity.I. it indicates
overrange situation and the higher range has to be selected.

2 Loosen the fixing screw of the case and remove it.1. be sure that
test leads have been disconnected from
measurement circuit to avoid electric shock hazard.2 FUSE REPLACEMENT
WARNING
To avoid electrical shock.
For protection against fire.
5. it indicates
that the battery should be replaced. replace fuses only with
specified ratings: F 500mA/250V (quick acting).
5.
5.3 Replace the exhausted battery with a new one.
5. remove test leads from
measurement circuits before replacing the fuse.1 BATTERY REPLACEMENT
WARNING
Before attempting to remove the case.
5.1.5.1 If the sign‘ ’appears on the LCD display.
.4 Put the case as its origin.1. MAINTENANCE
5.
5.1.1 Fuse rarely need replacement and blow almost always
as a result of the operator’s error.
NOTE:
• The polarity of the battery can not be set inversely.2.

3 Replace the blown fuse with ratings specified.4 Put the case as its origin.3 TEST LEADS REPLACEMENT
WARNING
Full in compliance with safety standards can be
guaranteed only if used with test leads supplied.2.
5.
5.2. If
necessary.2 Loosen the fixing screw of the case and remove it.2.
. Electric ratings of
the test leads: 600V 10A
You must be replaced the test leads if the lead is exposed.
5.5. they must be replaced with the same
model or same electric ratings.